Unresolved externals in C++ when using vectors and find

Question

I have tried this code in a totally separate project, and it works fine (the only difference being that the project that is not working is being exported as a DLL). Here is

Answer 1

I found another forum post, where somebody seems to have reported the same exact problem that you are having. Please check to see if you have

_DEBUG

defined either in your project settings (under C/C++ -- Preprocessor) or somewhere in your code (or include files).

It looks as if std::vector thinks you are building a debug build, when you are in fact creating a release build.

I hope this helps.

Answer 2

Worked for me with : The problem in my case was a Debug configuration with Runtime Library set to Multi-threaded DLL. The fix was to change it to Multi-threaded Debug DLL

Answer 3

The problem was I had _DEBUG defined in C/C++->Preprocessor. Changing it to NDEBUG solved the problem.

Answer 4

The problem in my case was a Debug configuration with Runtime Library set to Multi-threaded DLL. The fix was to change it to Multi-threaded Debug DLL. The error is gone. Removing _DEBUG macro was also a kind of workaround, by I guess it's not a good idea because you end up with debug build linked to non-debug standard library.